Beta 2 Release - Profiles Question

I was playing around with the Profiles in the latest beta release, and
wanted to be able to apply a "requirement" stereotype to a use case, but it
seems as though this is only possible with comments.  How is this supposed
to work?  Are you supposed to comment use cases, and then assign the
stereotype to the comment? Can you then associate the same "requirement"
comment to any node (class, state, etc) to capture traceability?

Also, there doesn't seem to be any tags associated with requirements to
allow you to capture the requirement ID.  Is there some other way of
capturing the requirement ID?

Regards,

Mark Fortner